4. A production of 20 fuses is received by the store. It is known that 4 of the fuses are defective. The quality control engineer randomly selected three of the fuses from the production run. Find the probability that two of the fuses selected are defective.

Q: 4s +5 S -4

A:

Q: (a-5)

A:

Q: (a-5)

A: Solve the (a-5)6

Q: C3x2 + – 4 kx - 5x- 6.

A:

Q: n is the same as 239 added to the product of 238 and z

A:

Q: V81x6 V3x3

A: Given expression is:  81x63x3 =81x63x3=27x6-3

Q: Consider F(x) = = F(0) = 0 F'(3) = 6 F'(1) = 0 O F'(4) = 10 F'(2) = 2 I tf(t) tf(t) dt. Which of the…

A:

Q: 1b+1b

A: Applying  addition operation since terms with same variable  binomial addition

Q: (a-5)

A: Given:            (a−5)6

Q: 5 3 + s2-8 s2+ 3.

A:

Q: Simplify. (3 + 2x)(3-2x) 0 9+ 4x 09-4x² O 3-4x O9-4x

A:

Q: (4x)2

A: To evaluate(4x)2

Q: -5 -2 1

A:

Q: 2. 9=x-2y 3x + 5 = 2y

A: The given equations are system of linear equations in variables x and y. We solve these by…

Q: 9x4 y4  x  x2  y2

A: Given:  9x4y4 × x2y2

Q: 2. -ў — 2у %3D 6

A: answer is in next step

Q: X5 y / x4 y6

A: Given: x5yx4y6

Q: 2/21 + -2/9.

A: 221+−29

Q: 4a5b• V18a3b6

A: We have to find

Q: (a-5)

A: We have to find the value of: a-56

Q: -5/9 + 1/2

A: The given expression is

Q: 75 + フチ + k「3

A:

Q: -3 -2 -1 1 2 0000000 3.

A:

Q: /2 2. 1/2

A: (a12+b12)(2a12-3b12)=2a12a12+2a12b12-3a12b12-3b12b12=2a+2a12b12-3a12b12-3b=2a-a12b12-3b

Q: (a-5)

A: Given :- (a–5)6 Using Formula :- (a–b)3 = a3–b3–3a2b+3ab2

Q: Find x. X+4

A:

Q: -2 -4 and D = 4 8

A:

Q: 13. Divide. (2? + 9x – 52) ÷ (x – 4) x + 13 0.-+ 1 – 4 + 4 O++13+ 4 2 x - 4

A:

Q: y +y - 2y = 0

A: Here we have to solve , the given differential equation  y"+y'-2y=0 ...........(1)

Q: b. V3x -11= x+1 ,2

A: Solving on graph

Q: Two and two

A: Given:   Two and two

Q: -11/16 + 3/4

A: The given fractions are,